I have had a Unimount plow for about 11 years. In November I moved it to a new truck, reusing the old wiring/control (joystick), a Western Unimount to Ultramount adapter, and had the plow serviced (fluid change, new cylinders and shock). The plow was used about 12 times this winter and stayed mounted all the time. All operation was normal.
In early March, I removed the plow, storing it level on a concrete pad just like it has been for the last 8 years. One day last week (6 weeks after unmounting), I noticed that the angle between the mounting frame and the plow had changed, looking as if the plow had been angle fully to the right (left cylinder fully extended, right cylinder fully compressed). Of course, since the plow blade weighs more, it was in the same place and the frame had shifted.
I am sure this change happened in less than a day, since I walk within five feet of it almost daily and would have noticed even a small angular change. There has been no power applied to the plow since taking it off. Anyone have any ideas?
In early March, I removed the plow, storing it level on a concrete pad just like it has been for the last 8 years. One day last week (6 weeks after unmounting), I noticed that the angle between the mounting frame and the plow had changed, looking as if the plow had been angle fully to the right (left cylinder fully extended, right cylinder fully compressed). Of course, since the plow blade weighs more, it was in the same place and the frame had shifted.
I am sure this change happened in less than a day, since I walk within five feet of it almost daily and would have noticed even a small angular change. There has been no power applied to the plow since taking it off. Anyone have any ideas?